If I was doing that many I would find an extra oven rack, cut out most of the middle rods and put hardware cloth on it. Could do hundreds that way at one time. Could also take a dremel to an oven rack as is and put small grooves in it to keep the jig heads in place.
Depending on the oven rack you could simply put hardware cloth on it and use it that way. I can only guess how many a 1/4 inch mesh hardware cloth will allow and the different sizes of hardware cloth allows for lots of options for different sized heads. May be able to cure 3 racks at the same time, I imagine that could be as many as 1,500 or more.
I love taking my kids fishing, now if I could just manage to fish at the same time.